George worstenholm



G. WORSTENHOLM.

Making Bolts and Rivets.

Patented April 14, 1868;

fizreiz for.

NJETERS. PHOYO-UTHOGRAPHER, WSHINGTOM D C,

enonenwonsrnnnonnor NEWARK, NEW JERSEY.I

Letters Patent No. 76.873, dated; April 14, 1868.

IMPROVED BOLT AND RIVET-MAGHINE.

fits gtlgthltlt rtfemh'la in that itittert has mrt mating gnu at flgesame.

TO ALL WHOM. IT MAY CONCERN Be it known that LGEORGE WOItSTENHOLM,'ofNewurk,;in the countyof Essex, and in the State of New Jersey, haveinvented a new and'useful Improved Machine for Making Rivets; and Lhaveassigned the Letters Patent, when granted to Morris 'Straus, of 123Market street, Newark, in the county of Essex, State of New Jersey. Ido'hereby declare that the following is-a full,*clear, and exactdescription thereof, whichwillenable' .those skilled in'the art to makeand use the same, reference being had tothe accompanying drawing,forming part of this specification, in which drawing I I Figure 1 .is aplan view -of the improved machine. I

Figure 2 is a vertical section, taken inthe plane of the lines; a:,fi'g, 1, showing, among other things, the heading-die. I

Figure3 is a vertical section, takenin the planeof the line yyffig; 1,showing, among other things, the

head of theshears and the friction-shoes enclosed-therein.

'Similar letters indicate corresponding parts.

This invention relates to machinery for making riyets, nails, andsimilarJieaded articles from rods or bars of iron, or other metal, orfrom wire. I I

The letter a designates thei'rame of the machine, at one end of whiohismounted the main shaft, 6, which gives motion, through beyel-gears-c c,to .a transverse shaft, d, which has, like shaft (2, suitable hearingsin the frame. I I

The outer end ofshaft d has circumferential cam-grooves e e,' by-m'eansof which the horizontal feed-levers ff are vibrated, said cam-groovesbeing so. timed as to operatethe' levers in alternation. I I I The saidfeed-levers extend in opposite directions from the shaftd, until'theirother ends, which have slots that are elongated in the directionof their length, come above feeding-slides h 7;, which are placed nearthe sides of the frame as shown in fig. 1. I I I The said levers ff arepivoted-to the frame at-about the middle, bf their length, and areyihrated during the rotation of the shaft (1 by the action'of' thecam-grooves eje, in which the ends of the levers are allowed to rest.The slides h it slide on ways'in the frame, parallel to shaft ti. Eachof them contains a wedge-block, g, arranged on ways formed on thesaidslides, between the'ir'ends, as shown in figs. 1 and 2, to whichtheslotted ends of thc' vibrating-lerers ff are connected, respectively, bymeans of pins rising from the said wedge-blocks, and going through theslots of,-the levers; The block-'9 is'called a wedge-block because theleft-hand end, observing-fi'g\ 2, which end projects under the adjacentend of the feeding slide It, is inclined or bevelled on its upper face,the pu ose or object in giving that 'fo'rm to it being to raise thevertical clamping-pinlq which hangs down from the'slide 7:, and therebypress the hlank or rod-i against thelower ends ofthe screw Z, by meanswhereof the rod 2', from which the rivet or nail 'is to beformed, isfirmly-clamped in readiness-for the feed-Increment, The hloclss g 9 aremoved inwards by the lovers ff, at the-(beginning of their moyetnents,soas to cause the rods it to be firmly clamped, the continuation of theirvibration causing the forward shoulders of the blocks 9 g to comeagainst the forward ends of the slides, and carry the latter alsoinwards the required distance for the proper lengthof the rivet or nail,the length of feedbeing regulated by set-screws u u, which go throughthe outer ends h" It of said slides and come against the outer ends ofthe wedge-blocks so as to regulate andlimit the extent of movementallowed to them in the'sIides. I I

I The rods or blanks z'z'are supported in the tops of the slides 7t 72,as seen in the drawing, being caused to pass between 'th'e clampingqaink and the adjustable screw Z, as shown in the sectional view, fig. 2.

The rod iis pushed by the feeding device through aperforated stationaryhead, 1, and beyond it, (see fig. 2,'and the right-hand side offi-g. 1,)so that its end reaches alittle beyond the dies n 111, the latter ofwhich, n, is stationary," and the former movable. Theopposing faces ofthese dies have semicircular horizontal grooves,

which, when the dies come'togetlier, enclose that portion of therodwhich is to form the shank of the rivet or' nail, andgive to it therequired shape,- the inner edge of theniovable die being 'made toproject so as, in con operated from a cam on the shaft cl, said'jnnction with the face of the perforated headm, to act as a. shears,and to out ofi the rod to the proper length i for the shank of the nail.

The portion so cut off remains clamped between thedies until theheading-die (1, being forced against its projecting end, forms thereon aheadto the rivet or nail. The die and shears n are cam being surroundedby the head 0 of the die and shears, and the cam being so timed as todrive the die and shears n forwards at the proper time. act againstthewhole interior surface of the head a, but only against-afriction-shoe, 1), whose back isroun'ded 'so as to slide in a socket inthehead, forming a joint therewitl nhile the sole of the" shoe is curvedtosuit the curvature of the cam; i r

' This construction and arrangementralloivthe cam to act upon the headto move it to and fro with a irery slight degree of friction, theshoe'heingso held in its joint as to be allotted to adapt itself to thevarying shape or, curve of the earn." i I I The heading-die q is formed'in the endofasliding head, 1', whiehis jointed, etc, to aconnecting-rod, t,

whoseopposite end embraees aneecentric, formed on the main shaft bi theeccentric being properly timed to force the die q forwards at the momentwhen the end of the rod z is presented for its action.

The machine is so constructed andari'anged that the feeding-devices, theelamping and shearing-dies, and

the heading-dies, are each indnplicate, the same'heing operated eitherfromthe shaft 6 or'the shaft d; as,-for

instance, theheziding-diesq are actuated directlyfrom shai't'b, theclamping and shearing-dies n clirectly'from shaft 11, and the vibratingfeed-leversf, and through them the other feeding-deviceg from the sameshaft (Z also.

The motions are so timed that the clamping-dies and shears n arewithdrawn from the face of the station- 'ary dies at so, soon, astheheads'of therivets are formed, and the completed r'ii'ets are allowed todrop to the ground. t What I claim as new, andldesireto s'e'cure byLetters Patentiis-j The feeding-slides it, and wedge-blocks g, incombination with screw-l and'pin k, that presses the rod 2' upwards tohold it while being fed to the mach'ine, substantially as shown.

This specificationsigned by me, this .5th day of October, 1867.

GEORGE WORSTENHOLM.

Witnesses: I

W. Hum,

Gosmv Bane.

The cam of shaft d does not

